Cleaning device.



H. E. NORWOOD & E. B. DAVIDSON. CLEANING DEVICE.

APPLICATION FILED MAY 11,1912.,

L56 819 Patented Mar.25, 1913.

20 awuzwto'a UNITED STATES PATENT OFFICE.

HARRY E. NORWOOD AND EDWARD B. DAVIDSON, OF NEW YORK, N. Y.

CLEANING DEVICE.

Specification of letters Patent. t t 255, 1 3

To all whom it may concern:

Be it known that we, HARRY E. Nonwooo and EDWARD B. DAVIDSON, citizens of-the United States, residing at New York, in the county of New York and State of New York, have invented new and useful Improvements in Cleaning Devices, of which the following is a specification. v

This invent-ion relates to improvements in cleaning devices and has particular application to motor driven cleaning tools such, for instance, as brushes, and-the like.

In carrying out the present invention it is our purpose to provide a cleaning tool wherein dust and dirt resulting from the cleaning act-ion will be removed from the tool and deposited in a dust collecting chamber. I urthermore, we aim to provide a cleaning device wherein the dust, dirt and the like resulting from the cleaning action will be sucked up or drawn through the cleaning tool and subsequently thrown, under the action of centrifugal force, into a. dust collecting chamber.-

It is our purpose to provide a cleaning device, which will embrace the desired features of simplicity, eiiiciency and durability and which may be manufactured. and marketed at a relatively low cost.

With the above-recited objects in view and others of a like nature, the invention con sists in the construct-ion, combination and arrangement of parts, set forth in and falling within the scope of the appended clanns.

In the accompanying drawings;--l igure 1' is a side elevation of a cleaning device embodying our invention; Fig. 2 is a horizontal sectional view on the line 2-2 of Fig. 1; Fig. 3 is-a vertical sectional view on the'line 3-3 of Fig. 1.

In carrying our invention into practice, any suitable form of electric motor may be employed to actuate the fan and such motor may be either of the director alternating current type, according to the "conditions prevailing and furthermore, any suitable form of switch may be em loyed to start and stop the motor. There ore in the following description we have notd motor and switch in detail and such motor and switch are shown only conventionally, in the drawing.

Referring now to the drawing in detail, 1 designates the handle of our improved clea-ni struc'te' of any suitable. or preferred mate escribed the device, which handle may be con-' rial and of any selected orapproved design and is provided with a longitudinal bore through which is passed the current carrymg conductors ,2, a suitable switch 3 being interposed 1n the circuit formed by the currentcarrying conductors to effect the open-.

with a shaft 5 which finds bearings at diametrically opposite points within the housing 4. The lower end of this housing 4 is preferably closed by means of a plate or partition 6 formed with a centrally arranged aperture through which is passed one extremit-y of the shaft of the armature, and rigidly secured to the projecting extremity of the armature is a fan 7 composed, in the present instance,'of upper and lower annular plates 8 spaced appropriate distance apart and having arranged therebetween and connected thereto fan blades 9 disposed concentrically of the axes of the fan and designed to throw dust anddirt outwardly under action of the centrifugal force, the upper plate 8 being connected to the proximate extremity of the armature shaft.

Extending from the housing 4 and connected thereto in any suitable manner is a tool head 10 composed in the present instance of a metallic inverted cup-shaped body 11 having an open side 12 and substantially inclosing the fan. Arranged within this cup-shaped body of the tool head and surrounding the fan therein is a spiral partition 13 fastened to the top wall of thecup-shaped body in any suitable manner and spaced fro-m the depending wall of the body and the fanand terminating at one extremity in an outwardly turned lip 14 connected at the adjacent portion of the depending Wall of the cup-shaped body of the tool head, such body adjacent the lip 14 of the spiral partition being provided with an opening provided with a removable cover 15.

The outer wall of the cup-shaped body and the spiral partition cooperate with each other to form a dust collecting chamber 16, while the spiral partition, with the partition (3, forms a spiral fan chamber 17 having an outlet opening 18 at the juncture of the lip 14 with the wall, such outlet opening establishing communication between the spiral passage way and the dust collecting chamber, as is obvious. By means of this construction, it will be seen that the dust and dirt sucked into the fan under the action of the blades will be thrown outwardly and into the dust collecting chamber 16, from which the accumulated dust and dirt may be removed by opening the cover 15.

Into the open end 12 of the head 10 is soclteted or otherwise fastened a cleaning tool which inthe present instance consists of a brush composed of a base plate 19 and bristles 20, the base plate 1!) being provided with a central opening alining with the similar openings in the plates 8-8 so that the dust and dirt resulting from the cleaning action will be drawn up by the fan and subsequently thrown from the fan easing into the dust collecting chamber. The cupshaped body ll of the head 10 is provided with a plurality of air outlet openings 21 arranged in rows about the body and covered with suitable foraminous material, such as the fine wire screening 22. Thus, the air will escape from the head, while the dust will be retained therein and collected in the chamber. The housing 4 of the motor is also provided with ventilating openings 23, covered with screening or the like and designed to facilitate ventilation of the motor.

In the embodiment of the invention selected for illustrated purposes, we have shown our improved cleaning device as employed in conjunction with a brush and in this connection we desire to have it understood that other cleaning tools may be applied to the head 10 as well as the brush.

From the foregoing description taken in connection with the accompanying drawing, the construction, mode of operation and manner of employing our invention will be readily apparent. When it is desired to utilize the tool for -l*aning purposes, the

required tool is inserted in the open end of the head 10 and the handle gras 'ied by one hand of an operator and the starting button 2-} manipulated to close the circuit to the motor. The device is now applied to the object to be cleaned for instance, an animal, such as a horse, the tool being drawn back and forth or rubbed over the surface in any suitable manner to remove the dust and dirt theret'rtuu. In the movement of the device, the dust resulting from the cleaning action is sucked up by the fan and subsequently drawn away from the fan under the action of centrifugal force and carried around the path way 17 and driven into the dust collecting chamber 16. After the cleaning of the object has been accomplished, the cover 15 is removed so that the accumulated dust and dirt may be deposited into a suit able receptacle.

While we have herein shown and described one particular embodiment of our invention by way of illustration, it is to be understood that we do not limit ourselves to the precise details of construction herein described and delineated, as modification and variation may be. made within the scope of the claims and without departing from the spirit of the invention.

We claim 1. In a cleaning device, a motor, a housing surrounding the motor, a tool head connected to said housing and provided with an open bottom, a fan rotatably mounted Within the tool head, a cleaning tool carried by said head at the open bottom thereof, and a partition Within said head and surrounding the fan therein and forming with the wall of the head and the cleaning tool, a dust collecting chamber.

2. In a cleaning device, a motor, a housing surrounding the motor, a tool head connected to said housing, a fan rotatably mounted within the tool head and connected to said motor, a cleaning tool carried by said head, and a spiral partition within said head surrounding the fan therein and forming with the wall of the head and the tool, a dust collecting chamber.

3. In a cleaning device, a motor, a housing surrounding the motor, a head connected to said headand provided with an open bottom, afan rotatably mounted within the head, a cleaning tool carried by said head at the open bottom thereof and provided with a central opening in communication with the fan whereby the dust and dirt resulting from the cleaning action may be drawn up by the fan, and a spiral partition Within said head and surrounding the fan therein and forming a spiral fan casing and cooperating with the wall of the. head and the cleaning tool to provide a dust t-ollecting chamber adapted to receive the dust drawn up by the fan.

In testimony whereof we atlix our signatures in presence of two witnesses.

HARRY E. NORVVOOD. EDWARD B. DAVIDSON. VVit-nesses T. W. Jesse, FREDERIC L. THOMPSON. 

